JP3256176B2 - Rice cooker inner lid seal structure - Google Patents
Rice cooker inner lid seal structureInfo
- Publication number
- JP3256176B2 JP3256176B2 JP06728298A JP6728298A JP3256176B2 JP 3256176 B2 JP3256176 B2 JP 3256176B2 JP 06728298 A JP06728298 A JP 06728298A JP 6728298 A JP6728298 A JP 6728298A JP 3256176 B2 JP3256176 B2 JP 3256176B2
- Authority
- JP
- Japan
- Prior art keywords
- packing
- inner lid
- mounting groove
- downward
- height
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Cookers (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】この発明は炊飯ジャーの内蓋
シール構造に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inner lid seal structure for a rice cooker.
【０００２】[0002]
【従来の技術】炊飯ジャーにおいては、蓋の下面に内蓋
が着脱自在に取付けられ、その内蓋の外周縁に装着した
パッキンを鍋の開口周縁に密着させるシール構造が従来
からとられている。2. Description of the Related Art In a rice cooker, a seal structure has been conventionally adopted in which an inner lid is detachably attached to a lower surface of a lid, and a packing mounted on an outer peripheral edge of the inner lid is brought into close contact with an opening peripheral edge of the pot. .
【０００３】図３は圧力式炊飯ジャーの蓋１を示してお
り、その蓋１の下面に内蓋２が着脱自在に取付けられ
る。この内蓋２における鍋３に対するシール構造は、図
４に示すように、内蓋２の外周縁にパッキン装着溝４が
形成され、そのパッキン装着溝４にパッキン５が装着さ
れる。FIG. 3 shows a lid 1 of a pressure rice cooker, and an inner lid 2 is detachably attached to the lower surface of the lid 1. As shown in FIG. 4, the sealing structure of the inner lid 2 with respect to the pot 3 is such that a packing mounting groove 4 is formed on the outer peripheral edge of the inner lid 2, and a packing 5 is mounted in the packing mounting groove 4.
【０００４】上記のパッキン装着溝４は、内蓋２の外周
縁に設けた下向き屈曲部６と、その下端に設けた内向き
屈曲部７とにより形成される。また、パッキン５は上記
の内向き屈曲部７の内面と下向き屈曲部６の内面に接し
た基部８と、その基部８に連続して上記の内向き屈曲部
７の下方に向けて屈曲されると共に、その屈曲部７に対
向した中間部９、及びその中間部９に下向きに屈曲して
形成されたリップ部１１とにより形成される。また上記
の中間部９に内蓋２側に突き出した補強用の突出部１０
が全周にわたり設けられる。The packing mounting groove 4 is formed by a downward bent portion 6 provided on the outer peripheral edge of the inner lid 2 and an inward bent portion 7 provided at the lower end thereof. In addition, the packing 5 is bent toward the base 8 in contact with the inner surface of the inward bent portion 7 and the inner surface of the downward bent portion 6, and bent downward from the inward bent portion 7 continuously to the base 8. At the same time, it is formed by an intermediate portion 9 facing the bent portion 7 and a lip portion 11 formed by bending the intermediate portion 9 downward. Further, a reinforcing protrusion 10 protruding toward the inner lid 2 at the intermediate portion 9 is provided.
Is provided over the entire circumference.
【０００５】上記のパッキン５は、それ自体の弾性によ
りその基部８をパッキン装着溝４の内面に押し付けるこ
とにより内蓋２に取付けられる。[0005] The packing 5 is attached to the inner lid 2 by pressing its base 8 against the inner surface of the packing mounting groove 4 by its own elasticity.
【０００６】なお、パッキン５の前記の基部８の先端に
下向き屈曲部６に接した立上がり部１２が設けられる
が、内向き屈曲部６の内面を基準としたパッキン装着溝
４の入口の高さをｈ1 とし、上記の立上がり部１２の高
さをｈ2 とした場合ｈ1 ＞ｈ2である。A rising portion 12 is provided at the end of the base 8 of the packing 5 in contact with the downwardly bent portion 6. The height of the inlet of the packing mounting groove 4 with respect to the inner surface of the inwardly bent portion 6 is provided. was a h 1, when the height of the rising portion 12 was set to h 2 h 1> it is h 2.
【０００７】[0007]
【発明が解決しようとする課題】上記のパッキン５は、
使用者がこれを取外して清掃することが容易にできるよ
うに、パッキン装着溝４の入口の高さｈ1 と、立上がり
部１２の高さｈ2 が上記のような高さ関係（ｈ1 ＞
ｈ2 ）に設定されているので、比較的外れやすい構造に
なっている。このため、パッキン５を外すことを目的と
しないときに、例えば単に内蓋２だけを蓋１から取外す
際に、パッキン５に指先が掛かるとパッキン５が使用者
の意思に反して外れることがある。The above-mentioned packing 5 is
As can be easily user to clean remove this, a height h 1 of the inlet of the packing mounting groove 4, the rising portion 12 the height h 2 is the height above relationship of (h 1>
h 2 ), the structure is relatively easy to come off. For this reason, when it is not intended to remove the packing 5, for example, when the inner lid 2 is simply removed from the lid 1, if a fingertip is put on the packing 5, the packing 5 may come off against the intention of the user. .
【０００８】そこで、この発明は使用者が内蓋を蓋から
外すときのように、パッキンを外す意思のないときは、
たとえパッキンに指が掛かっても外れ難くする一方、使
用者が清掃等に際し内蓋からパッキンを外したり或いは
パッキンを取付けたりする場合には、容易に着脱できる
ようにした内蓋のシール構造を提供することを課題とす
る。Therefore, the present invention provides a method for removing the packing when the user does not intend to remove the packing, such as when removing the inner lid from the lid.
Provided is a seal structure for the inner lid that makes it difficult to remove even if a finger is hooked on the packing, and that can be easily attached and detached when the user removes the packing from the inner lid or attaches the packing for cleaning or the like. The task is to
【０００９】[0009]
【課題を解決するための手段】上記の構造を解決するた
めに、この発明は内蓋の外周縁に形成されたパッキン装
着溝に鍋の開口周縁に密着するパッキンを装着して成
り、上記パッキン装着溝を上記内蓋の外周縁に設けた下
向き屈曲部とその下向き屈曲部下端に設けた内向き屈曲
部とにより形成し、上記パッキンを、上記パッキン装着
溝の内向き屈曲部に接して装着される基部と、その基部
に連続し、かつ上記内向き屈曲部の下方に対向するよう
屈曲された中間部及びその中間部に下向きに屈曲して形
成されたリップ部とにより構成し、上記中間部に内蓋下
面に向けて突出した突出部を設けてなる炊飯ジャーの内
蓋シール構造において、上記パッキンの突出部と対向し
て下向きに突出したリブを上記内蓋下面に設けた構成と
したものである。In order to solve the above-mentioned structure, the present invention comprises a packing mounting groove formed on an outer peripheral edge of an inner lid, and a packing closely attached to a peripheral edge of an opening of a pot. The mounting groove is formed by a downward bent portion provided on the outer peripheral edge of the inner lid and an inward bent portion provided at the lower end of the downward bent portion, and the packing is mounted in contact with the inward bent portion of the packing mounting groove. A base part, a base part continuous with the base part, and bent so as to face below the inward bent part, and a lip part formed by bending downward at the middle part. In the inner lid seal structure of the rice cooker in which a protruding portion protruding toward the lower surface of the inner lid is provided on the lower portion, a rib protruding downward facing the protruding portion of the packing is provided on the lower surface of the inner lid. Things.
【００１０】なお、上記突出部及びこれに対向した上記
のリブの対向面を、それぞれ平行な平坦面により形成し
た構成や、上記パッキンの基部に上記下向き屈曲部に接
して上向きに立上がった立上がり部を設け、上記内向き
屈曲部内面から上記立上がり部上端までの高さＨ2 を、
上記内向き屈曲部内面から上記リブまでの高さＨ1 より
大に形成してなる構成を採用することができる。[0010] The projecting portion and the opposing surface of the rib facing the projecting portion may be formed by parallel flat surfaces, or the rising portion may be formed at the base of the packing so as to rise upward in contact with the downward bent portion. A height H 2 from the inner surface of the inwardly bent portion to the upper end of the rising portion,
It is possible to adopt a configuration from the inward bent portion inner surface obtained by forming a larger than the height H 1 to the rib.
【００１１】[0011]
【発明の実施の形態】以下、図１及び図２に基づいてこ
の発明の実施形態を説明する。実施形態の内蓋シール構
造の基本的構成は、前述の従来例と同様であり、また内
蓋２のパッキン装着溝４、パッキン５の断面形状も同一
であるので、同一部分については同一符号を付して示す
にとどめその説明を省略し、従来例と相違する点につい
て詳述する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. The basic structure of the inner lid seal structure of the embodiment is the same as the above-described conventional example, and the cross-sectional shapes of the packing mounting groove 4 and the packing 5 of the inner lid 2 are also the same. Only the points that are different from the conventional example will be described in detail.
【００１２】即ち、この実施形態においては、内蓋２に
パッキン５の突出部１０に対向して下向きに突出したリ
ブ１３を設けている。このリブ１３は押出しにより断面
形状が台形になるように形成され、その平坦面１４がパ
ッキン５の突出部１０の平坦面１５と微小な間隙をおい
て平行に対向している。That is, in this embodiment, the inner lid 2 is provided with the rib 13 projecting downward so as to face the projection 10 of the packing 5. The rib 13 is formed so as to have a trapezoidal cross section by extrusion, and its flat surface 14 is opposed to the flat surface 15 of the protrusion 10 of the packing 5 in parallel with a small gap.
【００１３】上記のリブ１３は、その外端１６がパッキ
ン装着溝４の内向き屈曲部７の内端上に位置するように
形成され、これによりパッキン装着溝４の入口の幅を狭
くしている。その入口の高さＨ1 、即ち内向き屈曲部７
の内面を基準としたリブ１３の平坦面１４までの高さに
比べ、パッキン５の立上がり部１２の高さＨ2 の方が大
となるようにリブ１３の突出量が定められる。The rib 13 is formed so that its outer end 16 is located on the inner end of the inwardly bent portion 7 of the packing mounting groove 4, thereby narrowing the width of the entrance of the packing mounting groove 4. I have. The height H 1 of the inlet, ie, the inward bent portion 7
Compared to the inner surface at a height of up to the flat surface 14 of the rib 13 on the basis, the amount of projection of the ribs 13 as towards the height H 2 of the rising portion 12 of the gasket 5 is large is determined.
【００１４】実施形態の内蓋２のシール構造は以上のご
ときものであり、パッキン５を内蓋２に取付ける際は、
パッキン装着溝４の入口に対して所要角度θだけパッキ
ン５を傾けて、その基部８の立上がり部１２を押込み、
パッキン装着溝４の内部でその傾きを戻すことにより装
着する。取外すときはこれと逆に操作して取外す。いず
れの場合も、パッキン５の基部８は、前記の高さＨ1 よ
り大きい斜めの開口幅Ｈ3 （＝Ｈ1 ／ｃｏｓθ）を通っ
て取付け取外しがなされる。The sealing structure of the inner lid 2 according to the embodiment is as described above. When the packing 5 is mounted on the inner lid 2,
The packing 5 is tilted by a required angle θ with respect to the entrance of the packing mounting groove 4 and the rising portion 12 of the base 8 is pushed in,
It is mounted by returning its inclination inside the packing mounting groove 4. To remove, operate in reverse order to remove. In any case, the base 8 of the packing 5 is attached and detached through an oblique opening width H 3 (= H 1 / cos θ) larger than the height H 1 .
【００１５】一方、前記の内蓋２を蓋１から取外す際に
指先がパッキン５のリップ部１１に掛かって矢印Ａで示
すように内向きの力が加えられると、突出部１０がリブ
１３に当たってテコの支点となり、基部８の先端部が矢
印Ｂで示すようにパッキン装着溝４の内面に押し当てら
れる。これにより、パッキン５の外れが防止される。On the other hand, when removing the inner lid 2 from the lid 1, when a fingertip is applied to the lip 11 of the packing 5 and an inward force is applied as shown by an arrow A, the projecting portion 10 comes into contact with the rib 13. The tip of the base 8 is pressed against the inner surface of the packing mounting groove 4 as shown by an arrow B as a fulcrum of the lever. This prevents the packing 5 from coming off.
【００１６】また、パッキン５に対して内蓋２の面と平
行の内向きの力を加えた場合は、基部８の立上がり部１
２（高さＨ2 ）が、リブ１３によって狭められたパッキ
ン装着溝４の入口（高さＨ1 、Ｈ1 ＜Ｈ2 ）に引っ掛か
るため、この場合もパッキン５の外れが防止される。When an inward force parallel to the surface of the inner lid 2 is applied to the packing 5, the rising portion 1 of the base 8
2 (height H 2 ) is caught at the entrance (height H 1 , H 1 <H 2 ) of the packing mounting groove 4 narrowed by the rib 13, so that in this case also, the packing 5 is prevented from coming off.
【００１７】[0017]
【発明の効果】以上のように、この発明は、パッキンの
中間部に形成された突出部に対向して内蓋にリブを設
け、上記突出部及びこれに対向した上記のリブの対向面
を、それぞれ平行な平坦面により形成し、上記パッキン
の基部にその下向き屈曲部に接して上向きに立上がった
立上がり部を設け、また内向き屈曲部内面から上記立上
がり部上端までの高さＨ 2 を、上記内向き屈曲部内面か
ら上記リブまでの高さＨ 1 より大に形成したことによ
り、パッキンのリップ部に内向きの力が加えられた場合
にその突出部がリブに当たってテコの支点となり、パッ
キンの基部をパッキン装着溝内面に押当てる。これによ
りパッキンが外れに難くなる。また上記のリブによりパ
ッキン装着溝の入口が狭められるので、この点からもパ
ッキンが外れ難くなる。従って、使用者の意思に反して
パッキンが外れることを防止することができる。As described above, according to the present invention, the rib is provided on the inner lid so as to face the projecting portion formed at the intermediate portion of the packing, and the projecting portion and the opposing surface of the rib facing the projecting portion are provided .
Are formed by parallel flat surfaces, respectively,
Standing upward at the base of the abutment on its downward bend
A rising portion is provided, and the above-mentioned rising portion is
Until rising top end height H 2, or the inward bent portion inner surface
By forming the large than the height H 1 to Luo the rib, the protrusion when the inward force is applied to the lip portion of the packing against the rib become fulcrums of the lever, the packing mounting groove the base of the packing Press against the inside. This makes it difficult for the packing to come off. Further, since the entrance of the packing mounting groove is narrowed by the rib, it is difficult for the packing to come off from this point. Therefore, it is possible to prevent the packing from coming off against the intention of the user.
【００１８】一方、清掃等の手入れに際してはパッキン
をパッキン装着溝の入口に対して所定角度傾けることに
より容易に着脱することができる。On the other hand, when performing maintenance such as cleaning, the packing can be easily attached and detached by tilting the packing at a predetermined angle with respect to the entrance of the packing mounting groove.
【図１】実施形態の一部省略断面図FIG. 1 is a partially omitted cross-sectional view of an embodiment.
【図２】同上の一部拡大断面図FIG. 2 is a partially enlarged sectional view of the above.
【図３】従来例の一部省略断面図FIG. 3 is a partially omitted sectional view of a conventional example.
【図４】同上の一部拡大断面図FIG. 4 is a partially enlarged sectional view of the above.
１ 蓋 ２ 内蓋 ３ 鍋 ４ パッキン装着溝 ５ パッキン ６ 下向き屈曲部 ７ 内向き屈曲部 ８ 基部 ９ 中間部 １０ 突出部 １１ リップ部 １２ 立上がり部 １３ リブ １４ 平坦面 １５ 平坦面 １６ 外端 DESCRIPTION OF SYMBOLS 1 Lid 2 Inner lid 3 Pot 4 Packing mounting groove 5 Packing 6 Downward bending part 7 Inward bending part 8 Base part 9 Middle part 10 Projection part 11 Lip part 12 Rise part 13 Rib 14 Flat surface 15 Flat surface 16 Outer end
Claims (1)
溝に鍋の開口周縁に密着するパッキンを装着して成り、
上記パッキン装着溝を上記内蓋の外周縁に設けた下向き
屈曲部とその下向き屈曲部下端に設けた内向き屈曲部と
により形成し、上記パッキンを、上記パッキン装着溝の
内向き屈曲部に接して装着される基部と、その基部に連
続し、かつ上記内向き屈曲部の下方に対向するよう屈曲
された中間部及びその中間部に下向きに屈曲して形成さ
れたリップ部とにより構成し、上記中間部に内蓋下面に
向けて突出した突出部を設けてなる炊飯ジャーの内蓋シ
ール構造において、上記パッキンの突出部と対向して下
向きに突出したリブを上記内蓋下面に設け、上記突出部
及びこれに対向した上記のリブの対向面を、それぞれ平
行な平坦面により形成し、上記パッキンの基部に上記下
向き屈曲部に接して上向きに立上がった立上がり部を設
け、上記内向き屈曲部内面から上記立上がり部上端まで
の高さＨ 2 を、上記内向き屈曲部内面から上記リブまで
の高さＨ 1 より大に形成したことを特徴とする炊飯ジャ
ーの内蓋シール構造。Claims: 1. A packing is provided in a packing mounting groove formed on an outer peripheral edge of an inner lid, the packing being in close contact with an opening peripheral edge of a pan,
The packing mounting groove is formed by a downward bending portion provided on the outer peripheral edge of the inner lid and an inward bending portion provided at the lower end of the downward bending portion, and the packing contacts the inward bending portion of the packing mounting groove. A base portion to be attached to the base portion, a lip portion formed by being bent downward at the intermediate portion and the intermediate portion bent to face below the inward bent portion and facing the base portion, In the inner lid seal structure of the rice cooker, wherein a protrusion protruding toward the lower surface of the inner lid is provided at the intermediate portion, a rib protruding downward facing the protrusion of the packing is provided on the lower surface of the inner lid. Protrusion
And the opposing surfaces of the ribs facing the
Formed with a flat surface, and
A rising part that rises upward in contact with the
From the inside of the inwardly bent part to the upper end of the rising part.
Height H 2 from the inner surface of the inwardly bent portion to the ribs
Inner lid sealing structure cooker, characterized in that the than the height H 1 is formed on a large.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP06728298A JP3256176B2 (en) | 1998-03-17 | 1998-03-17 | Rice cooker inner lid seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP06728298A JP3256176B2 (en) | 1998-03-17 | 1998-03-17 | Rice cooker inner lid seal structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11262445A JPH11262445A (en) | 1999-09-28 |
| JP3256176B2 true JP3256176B2 (en) | 2002-02-12 |
Family
ID=13340474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP06728298A Expired - Fee Related JP3256176B2 (en) | 1998-03-17 | 1998-03-17 | Rice cooker inner lid seal structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3256176B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101152777B1 (en) | 2009-11-27 | 2012-06-11 | 쿠쿠전자주식회사 | Electric pressure cooker |
| KR101436886B1 (en) * | 2013-10-11 | 2014-09-02 | 주식회사 해피콜 | packing for vacuum pot lid |
| JP6998519B2 (en) * | 2017-08-03 | 2022-01-18 | パナソニックＩｐマネジメント株式会社 | rice cooker |
-
1998
- 1998-03-17 JP JP06728298A patent/JP3256176B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH11262445A (en) | 1999-09-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |